it is one of the oldest known games.
The Royal Game of Ur, also known as the Game of Twenty Squares, is a two-player strategy race board game that was first played in ancient Mesopotamia during the early third millennium BC.
The Royal game of India is a game called Parcheesi.
The Royal Game was created in 1942.
The Royal Air Force was possibly best known just as the RAF.
a cheetah
Assuming you mean the cards in your hand in a game such as poker, you would discard all cards in your hand that are not a jack, queen, king or ace as these are considered the "royal" cards. Ideally you would draw one of each and have what is known as a royal straight, and if you're really lucky you would get a them all of the same suit - a royal flush.
It is known as the Royal County.
Backgammon was played in Iran in the 4th century BC, as was a very similar game called Nard. The Game of Twenty Squares is also known as the Royal Game of Ur, after the Iraqi city in which the pieces and rules were excavated.
According to the Royal Society of Chemists, its electrical conductivity is not known.
The Royal British Legion is most known for it's charity work with those that have served in the United Kingdoms military forces. The Royal British Legion was founded in 1921.
The present surname of the British royal family is Windsor. They are known as the house of Windsor.